def place(self, shape, start, direction, inv_modelview):
""" Place a new node.
Consume: shape the shape to add
start, direction describes the Ray to move to
inv_modelview is the inverse modelview matrix for the scene """
new_node = None
if shape == 'sphere': new_node = Sphere()
elif shape == 'cube': new_node = Cube()
elif shape == 'cylinder': new_node = Cylinder()
elif shape == 'figure': new_node = SnowFigure()
self.add_node(new_node)
if new_node.call_list != 5:
#print(dir(new_node),new_node.call_list)
# place the node at the cursor in camera-space
translation = (start + direction * self.PLACE_DEPTH)
# convert the translation to world-space
pre_tran = numpy.array(
[translation[0], translation[1], translation[2], 1])
translation = inv_modelview.dot(pre_tran)
new_node.translate(translation[0], translation[1], translation[2])
if new_node.call_list == 5 and len(self.selected_node_list) > 2:
#print(dir(new_node),new_node.call_list)
# place the node at the cursor in camera-space
translation = (start + direction * self.PLACE_DEPTH)
# convert the translation to world-space
pre_tran = numpy.array(
[translation[0], translation[1], translation[2], 1])
translation = inv_modelview.dot(pre_tran)
#print(self.selected_node_list[-1].translate)
#print(self.selected_node_list[-2].translation_matrix)
center_x = (
self.selected_node_list[-2].translation_matrix[0, 3] +
self.selected_node_list[-1].translation_matrix[0, 3]) / 2
center_y = (
self.selected_node_list[-2].translation_matrix[1, 3] +
self.selected_node_list[-1].translation_matrix[1, 3]) / 2
center_z = (
self.selected_node_list[-2].translation_matrix[2, 3] +
self.selected_node_list[-1].translation_matrix[2, 3]) / 2
new_node.translate(center_x, center_y, center_z)
direction_x = (
self.selected_node_list[-2].translation_matrix[0, 3] -
self.selected_node_list[-1].translation_matrix[0, 3])
direction_y = (
self.selected_node_list[-2].translation_matrix[1, 3] -
self.selected_node_list[-1].translation_matrix[1, 3])
direction_z = (
self.selected_node_list[-2].translation_matrix[2, 3] -
self.selected_node_list[-1].translation_matrix[2, 3])
if math.fabs(direction_z) > 2:
new_node.rotate(
math.atan(direction_z / direction_y) + math.pi / 2,
math.atan(direction_x / direction_z), 0, False)
elif math.fabs(direction_y) > 2:
new_node.rotate(90, 0, 0)
new_node.rotate(
math.atan(direction_y / direction_z) + math.pi / 2,
math.atan(direction_x / direction_y), 0, False)
elif math.fabs(direction_x) > 2:
new_node.rotate(0, 90, 0)
new_node.rotate(
math.atan(direction_x / direction_z) + math.pi / 2,
math.atan(direction_y / direction_x), 0, False)
print(
math.atan(direction_z / direction_y) * 180 / math.pi,
math.atan(direction_x / direction_z) * 180 / math.pi)
#print("1",math.atan(direction_z/direction_y)*(180/math.pi),math.atan(direction_x/direction_z)*(180/math.pi))
print("2", direction_z / direction_y, direction_x / direction_z)
print("3", direction_z, direction_y, direction_x, direction_z)
